Compare 3 motherboards

Side-by-side comparison of 3 motherboards
Specification	ASUS PRO B550M-C/CSM Business Motherboard Socket AM4	ASUS Prime B550M-A AMD Ryzen AM4 Micro ATX Motherboard	ASUS PRIME B550M-K WIFI
Price (new) (differs)	£106.39as of 5 Nov, 18:20	£105.35as of 5 Nov, 18:20	£104.99as of 5 Nov, 18:22
RRP (differs)	£143.99	not stated	not stated
Price badge (differs)	not stated	not stated	Lowest we've recorded
First available on Amazon (differs)	Jan 2021 (5 yr 10 mo old)	Jan 2022 (4 yr 10 mo old)	Jun 2026 (5 mo old)
M.2 slots (differs)	2	2	not stated
WiFi (differs)	None named in the listing title	None named in the listing title	WiFi 6
Wired LAN (differs)	2.5GbE	1GbE	not stated
Fastest USB-C port (differs)	10 Gbps	not stated	not stated
Debug LED / POST code (differs)	not stated	not stated	Yes
ARGB headers (differs)	not stated	Yes	Yes
Video outputs (differs)	HDMI, DisplayPort	HDMI	HDMI, DisplayPort
Colour (differs)	not stated	not stated	Black
Amazon sales rank (differs)	#225,157	#157,270	#1,641
Buy	Check price on Amazon	Check price on Amazon	Check price on Amazon

Highlighted rows differ between these boards. “Not stated” means the Amazon listing does not mention it: the board may still have it, so check the maker’s specification. Power phases are printed as stated by the maker and are not comparable between brands. Prices are the new price on Amazon.co.uk at the time shown; the price on Amazon when you buy is the one that applies.

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